Wrightscale Kerr Stuart "Wren"

This is a very, very small Wren - certainly the tiniest live steam one I've seen. A 32mm gauge Wrightscale kit, part assembled and complete with what appears to be all parts to finish and a set of build instruction. Wrightscale claim twenty minutes running on a tank of gas and the ability to negotiate two foot radius curves.

Copper boiler, slide valve cylinders with Hackworth valve gear.